Feeder for standard ingot-molds.



E. J. TURNER & B. H. HOWARD.

FEEDER FOR STANDARD INGOT MOLDS. APPLICATION FILED MAR. 10, 1915.

Patented Dec. 12, 1916.

wdneooaq vention will appear during the course of the TED STATES PATENFFIQE.

ERNEST J. TURNER, OF PITTSBURGH, AND BLOOMFIELD H. HOWARD, ASPINWALL,

' PENNSYLVANIA, a

FEEDER FOR STANDARD IN GOT-MOLDS.

and State of Pennsylvania, and of Aspin- 1 wall, in the county ofAllegheny-and State of Pennsylvania, have invented certain new anduseful Improvements in Feeders for Standard Ingot-Molds, of which thefollowing is a specification.

()ur invention relates to the manufacture of iron or steel ingots andhas for its ob ject, to prevent, or reduce to a minimum the formation ofcavities, holes, or seams, known as piping in the upper portion of theingot.

A further object of the invention is to produce a feeder for ingot moldsin such practical form that it may be used in connection with anystandard ingot mold.

A further object of the invention is to provide a feeder having a ringmade of fire clay or other refractory material and which forms anextension of the upper portion of the mold.

A still further object of the invention-is to provide a novel method ofheating the ring extension of the molds.

Other objects and advantages of our indescription.

Ingot mold feeders have been invented from time to time but these almostinvariably form part of a complicated ingot. mold both diflicult andexpensive to construct and often impracticable to use and consequentlythey are of no advantage and cannot be used to any extent under existingconditions in the manufacture of steel.

A practical embodiment of our invention is represented in theaccompanying drawing forming a part of this specification and in whichlike letters are employed to designate like parts throughout the severalviews.

In the drawing, Figure 1 is a plan view of the preferredform of feeder;Fig. 2 is a vertical section of the. same showing it applied to a mold';Fig. 3 is a plan View of a modified form of feeder; Fig. 4 is a vertical section of the fe der' shown in Fig. 3 and applied to a mol Fig. 5is a plan view of the refractory ring of the feeder; Fig. 6 is aperspective view of-the refractory ring made in sections; Figs. 7 and 8Specification of Letters Patent.

Application filed March 10, 1915.

Patented Dec. 12, 1916.

Serial No. 13,551.

are detail perspective "iews of ingot molds provided with hooks andloops or apertured lugs respectively; Fig. 9 is a vertical section of amodification and showing the application of gas burners.

Referring to the drawings, X is any standard ingot mold of approvedconstruction and of any size, shape or dimensions whatsoever, withsuitable ears or lugs b. to which may be fastened chains, rods, or othersuitable attachments for the purpose of lifting or moving the ingotmold, X, by means of a crane, derrick or other suitable device prior tothe feeder being placed thereon; 0 represents the inner wall of theingot mold X, and is continued by the inner wall (I, of a ring 6, madeof fire clay or other refractory material and may be made solid as shownin Figs. 2, l and 5 or in sections as shown in Fig. 6; is a floor platemade preferably of boiler plate steel and containing an opening, y,larger than the bore 2-, of the ingot mold X, so that when the floorplate f, rests upon the top of the ingot mold X, a shoulder h will beformed into which the lOWer portion 2' of the ring 0 fits snugly, theshoulder j, of the ring 0, resting on the floor plate,

The floor plate 7 is provided with an outer wall 9 which is preferablyintegral with the plate and forms with the refractory ring thecombustion chamber m. The floor plate f is also provided with openings,or perforations 0 through which air will be admitted if coal, charcoalor other similar combustible material is used in the combustion chamberm, or through which burners y? for supplying gas for fuel may beinserted, as shown in Fig. 9. If desired additional openings 0 may alsobe made through the outer Wall, g, through which burners 1 may beinserted. Lifting lugs are provided on the plate f, so that a chain,bail or other suitable means may be attached thereto to place the feederin position on the mold, X. Lugs or projections p may be attached to thefrom its lower to its upper end, and the wall is separate from the plateThe wall 5 is held in position on the fioor plate 7' by the lugs n,attached to the floor plate 7' in any approved manner. If desired, theselugs, u may be replaced by an annular ring a on the floor plate 7' asshown in Fig. 9. Theouter wall y may be made of steel, tile, fire clayor any other suitable material.

From the foregoing description taken in connection with the drawings,the method of casting ingots by the use of our improved feeder is asfollows: The feeder may be prepared for use either before or after beingplaced upon the ingot mold. The ring of refractory material is placed inposition, and also the outer Wall if it is separate from the floorplate. The combustion chamber is filled with combustible material andignited or aburner is pro ected into the said chamher. When the ring ofrefractory material is sufficiently heated, molten metal is poured intothe ingot mold until it reaches the top of the space inclosed by thewall of the ring of refractory material which will retain the heat sothat the upper portion of the ingot will remain in a viscous conditionfor a considerable portion of time; The metal thus held in a moltenstate will flow downward and fill anypipes that may be formed by thecontraction of the metal in cooling below, so that a solid ingot freefrom pipes or seams is' produced.

By our construction of feeder it will readily be seen that it can beapplied to the ordinary ingot mold and when not in use it can be quicklyremoved from the mold to facilitate the removal of the ingot from themold. By our construction, also, a tight joint is made between thefeeder and the top of the mold thereby preventing any likelihood of themolten metal finding its way into the combustion chamber, a diifioultythat has been encountered in molds of. this character, and which rendersthe removal of the ingot from the mold difiicult.

Having thus described our invention what we claim and desire to secureby Letters Patent is Ina feeder for ingot molds, the combination with amold, of a plate adapted to rest on the top of the mold and having anopening of greater diameter than the bore of the mold, said plate beingprovided with a marginal wall, and a refractory ring having its lowerend reduced, said reduced end fitting in the opening of the plate andresting upon the top of the mold.

ERNEST J. TURNER. BLOOMFIELD H. HOVARD. Witnesses:

C. C. EDMUNDS, F. D. ECKER.

